sundance-communications.com Forums Telephony Discussion Phone & VoIP Systems Nortel Telephones & Systems Creating a phantom loop on an Option 11

I doubt it has to be 159 on an Option 11, but I do think there's a specific range it needs to fall into. I also highly doubt it can be "changed" from a 500 type to a phantom...

I work with a phantom loop on an 81C that's # 156.